4511985 has 8 divisors (see below), whose sum is σ = 7219200. Its totient is φ = 2406384.

The previous prime is 4511971. The next prime is 4511989. The reversal of 4511985 is 5891154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-4511985 is a prime.

It is an Ulam number.

4511985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4511989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150385 + ... + 150414.

It is an arithmetic number, because the mean of its divisors is an integer number (902400).

Almost surely, 2^4511985 is an apocalyptic number.

It is an amenable number.

4511985 is a deficient number, since it is larger than the sum of its proper divisors (2707215).

4511985 is a wasteful number, since it uses less digits than its factorization.

4511985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300807.

The product of its digits is 7200, while the sum is 33.

The square root of 4511985 is about 2124.1433567441. The cubic root of 4511985 is about 165.2428013981.

The spelling of 4511985 in words is "four million, five hundred eleven thousand, nine hundred eighty-five".